3938996919 has 32 divisors (see below), whose sum is σ = 6176233728. Its totient is φ = 2201472000.

The previous prime is 3938996909. The next prime is 3938996953. The reversal of 3938996919 is 9196998393.

It is not a de Polignac number, because 3938996919 - 2⁴ = 3938996903 is a prime.

It is a super-2 number, since 2×3938996919² = 31031393455782985122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3938996919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938996909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498439 + ... + 506279.

It is an arithmetic number, because the mean of its divisors is an integer number (193007304).

Almost surely, 2^3938996919 is an apocalyptic number.

3938996919 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3938996919 is a deficient number, since it is larger than the sum of its proper divisors (2237236809).

3938996919 is a wasteful number, since it uses less digits than its factorization.

3938996919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039.

The product of its digits is 25509168, while the sum is 66.

The square root of 3938996919 is about 62761.4285927272. The cubic root of 3938996919 is about 1579.2899815467.

The spelling of 3938996919 in words is "three billion, nine hundred thirty-eight million, nine hundred ninety-six thousand, nine hundred nineteen".